Purdue Extension Service

Vanderburgh County, Indiana

 

Horticultural Websites

 

Following are links to various horticulturally related websites that.  They have sorted them by topic.  Click on the topic in the table below to jump to that section.

Some of the publications are in PDF format.  You will need to have Adobe Acrobat Reader installed on your computer to open and read these documents.  Download Adobe Acrobat Reader here.

If you know of other horticultural websites that should be included here, cut and paste the URL and e-mail it to Larry Caplan, Extension Horticulture Educator and webmaster.  Also, please let me know if you find any broken links.

 

 

Publications

 

Evansville Area Websites

Gardening for People with Physical Disabilities

 

Pest Identification and Control

 

Pesticide Safety

Trees and Shrubs

 

Vegetable Gardening

 

Lawn Care

Home Fruit and Nut Production

 

Flower Gardening

 

Soils and Nutrition

Ponds

 

Purdue Websites

 

 

 

 

 Publications

 

Purdue Extension Publications:  Download Purdue publications from horticulture, botany and plant pathology, entomology, and other non-gardening departments.

 

Ohio PlantFacts:   One of my favorite search engines.  It pulls up information from University publications from around the country (or you can narrow the search to specific regions).

 

Horticulture on the Internet:  A collection of bookmarks to various University bulletins on numerous topics.  Not as handy or complete as the Ohio Plant Facts, but still useful.

 

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Purdue Web Pages

Links to some of the many useful sites Purdue University hosts

 

Disaster Recovery Resources for Indiana:  Indiana's link to the Extension Disaster Education Network.

New Crop Resources:  Links to new crops and plant product research information.

Office of the Indiana State Chemist:  Housed on Purdue campus.

Purdue University Home Page

Purdue University, Vanderburgh County Extension Office

Purdue Cooperative Extension Service Home Page

Purdue Extension Field Staff:  Links to all of the 92 county Extension offices in Indiana.

Purdue Consumer Horticulture home page

Purdue Departments in the School of Ag and Natural Resources

Purdue Extension Newsletters:  Links to the Pest & Crop Newsletter and the Vegetable Crops Hotline.

Purdue Dept. of Entomology

Purdue Entomology Bug Bowl:  The annual Bug Bowl is the largest known insect event of its kind. Nearly 30,000 people attend this event each year as part of Purdue's Spring Fest weekend. Preschoolers through retirees take part in numerous hands-on insect activities including the cricket spitting contest and cockroach racing at Roachill Downs. The Bug Bowl consistently has the highest attendance of any event during Purdue's Spring Fest weekend!

Purdue Extension Water Quality

Purdue Land Use TeamThe Purdue Extension Land Use Team offers educational materials and programming to help you and your community find the answers to questions about zoning, subdivisions, and other land use issues.

Purdue Public Health and Medical Entomology:  Diseases such as West Nile virus and Lyme Disease cause considerable human mortality and morbidity. Public education is the key to the prevention and control of vector-borne diseases. The goal of the Purdue Public Health Entomology Program is to reduce transmission of vector-borne diseases through public education. We offer a variety of educational materials and training opportunities to help the public learn about vectors, vector-borne diseases, and their control.

Purdue Dept. of Weed Science

Purdue Pesticide Programs

Purdue Virtual Plant and Pest Diagnostic Lab

 

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 Evansville Area Websites

 

Audubon State Park:  Located in Henderson, Kentucky.

 

Butterflies of Vanderburgh County:  This site is maintained by the Northern Prairie Wildlife Research Center, part of the US Geological Service.

 

Daylily Enthusiasts of Southern Indiana

 

Evansville Museum of Arts, History and Science:  Welcome to the online realm of The Evansville Museum of Arts, History and Science. Home to one of Southern Indiana's most established and significant cultural centers, the Evansville Museum encourages you to view our lively world through our many permanent and changing galleries.

 

The Evansville Rose Society:  Local rosarians post meeting and event times, as well as information on their favorite roses.

 

Evansville Urban Forestry Department:  Download a list of tree companies that are licensed to do tree trimming in Evansville; if you're a tree company, learn when the next Ordinance Compliance Seminar is.  Download articles on saving trees in construction areas, why topping is bad, and how to plant trees. 

 

Evansville/Vanderburgh County Government:  The official website for the City of Evansville and Vanderburgh County government offices.

 

Evansville-Vanderburgh Public Library:  Databases, search engines, and more!

 

Keep Evansville Beautiful:  Formerly Operation City Beautiful, K.E.B.'s mission is to motivate and educate the community through litter prevention, recycling and beautification programs for the environmental and economic benefit of the greater Evansville area.

 

Long Term Recovery Committee of Southwest Indiana:  Their mission is to coordinate our members agencies' available manpower, money and materials to meet the emotional, physical, financial and spiritual needs of survivors.

 

Pigeon Creek Greenway Passage:  The Pigeon Creek Greenway Passage, upon its completion, will encircle Vanderburgh County and include links to neighborhoods and parks in neighboring counties. Ultimately, the Pigeon Creek Greenway Passage will connect to a nation-wide system of greenways called the American Discovery Trail.

 

Southwestern Indiana Daylily Society

 

Southwestern Indiana Master Gardener Association:  Learn more about the Purdue Master Gardener program, and what local Master Gardeners are doing for our community.

 

Tri-State Food Bank Located in Evansville, Indiana, the Tri-State Food Bank continues its quest to deliver safe food to hundreds of charities and sites serving thousands of local women, men and children in the tri-state.

 

Vanderburgh 4H Center:  The Vanderburgh 4-H Center, a private non-profit organization, offers surrounding communities a unique complex of modern facilities that are exceptionally-maintained and managed by professionals.  It remains the hub of many youth-oriented events and has diversified, as well, to become a desirable spot for corporate meetings and dinners, conventions, sporting events, and a variety of other private and public activities.

 

Vanderburgh County Fair:  Not really horticulture, but a good place to find out what's going on at Vanderburgh County's 4-H Fair.

 

Vanderburgh County Soil and Water Conservation District:  Our mission is to provide quality conservation services resulting in a harmonious balance between natural resources,  social change, and profitability within Vanderburgh County by fostering innovative partnerships.
 

Wesselman Nature Society:  The volunteer organization behind Evansville's most beautiful spot, Wesselman Woods Nature Preserve!  Learn about upcoming programs and events at the Nature Preserve, as well as Howell Wetlands and Canoe Evansville.

 

Western Kentucky Botanical Garden:  Located in Owensboro, Kentucky.

 

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 Gardening For People With Physical Disabilities

 

Accessible Gardening for Therapeutic Horticulture:  University of Minnesota publication.

 

AgrAbility:  This Purdue University web site was designed as a fast and easy way to access several sites that provide disability-related information relevant to persons who live in agricultural and rural communities.

 

Breaking New GroundSince its inception in 1979, the Breaking New Ground Resource Center in Purdue's Department of Agricultural & Biological Engineering has become internationally recognized as the primary source for information and resources on rehabilitation technology for persons working in agriculture.

 

Carry On Gardening:  Carry on Gardening is the forum and meeting place for people who love gardening and want to carry on enjoying the benefits and rewards.

 

Chicago Botanic Garden Horticultural Therapy:  Explore how to make your own garden age-proof, ache-proof and fully barrier-free — a space designed to suit your own particular needs. Find out about the professional services of the Chicago Botanic Garden's internationally acclaimed Horticultural Therapy Department too.

 

Farming With a Hearing Impairment:  University of Kentucky publication, in PDF format.

 

Gardening for the Blind -- Tips for People With Impaired Vision By Larry Caplan, Purdue Extension Horticulture Educator in Vanderburgh County.  Download a large-print version of this publication by clicking here.

 

Gardening for the Senses:  The Sensual Garden:  By Larry Caplan, Purdue Extension Horticulture Educator in Vanderburgh County.  Gardening for the Senses was written to complement Gardening for the Blind:  Tips for People With Impaired Vision, above.  Download a large-print version of this publication by clicking here.

 

Garden Forever:  A commercial mail-order gardening supply company that specializes in enabling tools.  They have many interesting articles on the site, too.

 

Gardening with the Elderly Ohio State University publication.

 

Half the Planet:  Right now about half the planet - an estimated 3 billion people - are affected by disabilities in some way.  Half-the-Planet is a web site where the entire disability community can access reliable services and products, connect with peer support, and keep up with disability-related news and information all day every day.

 

Home Enabling GardenA three-part article hosted on the NCPAD site (see below), written by Gene Rothert of the Chicago Botanic Garden.   Enlarged photos to accompany the text can be found here.

 

The National Center on Physical Activity and Disability:  NCPAD is an information center concerned with physical activity and disability.   

 

Books:  These are not internet links, but hard-copy books that I find extremely useful on the subject of enabling gardeners.

The Enabling Garden: Creating Barrier-Free Gardens by Gene Rothert.  Taylor Publishing Co., 1994.  (Gene is the manager of Urban Horticulture at the Chicago Botanic Gardens, where he oversees the Enabling Garden for People With Disabilities.  This is the most-used book on the subject in my library)

Accessible Gardening for People With Disabilities by Janeen R. Adil.  Woodbine House, 1994.

The Able Gardener by Kathleen Yeomans.  Storey Communications, 1992.

Garden for Life by Lynn Dennis.  University Extension Press, Univ. of Saskatchewan, 1994.

Horticulture Therapy and the Older Adult Population by Suzanne E. Wells.  Haworth Press, 1997.

Accessible Gardening:  Tips and Techniques for Seniors and the Disabled by Joann Woy.  Stackpole Books, 1997.

 

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Pest Identification and Control

 

General                Disease           Insects             Weeds         Wildlife

 

General

 

Purdue Plant and Pest Diagnostic Lab:  The P&PDL provides rapid and accurate identification of pests and problems associated with plants, as well as other types of vertebrate and invertebrate pests.  Some site features include:  Picture of the Week, current pest news, newsletters, and information on how to take and send a sample of a pest or its damage to the P&PDL.

 

A Story of Plant Pathology:  Purdue Univ.  Fairly cute description of the history of Plant Pathology.  Narrated.

 

Fungi in Mulch and Compost:  Ohio State University publication.

 

Gardening With Fewer Pesticides:  A guide to using Integrated Pest Management (IPM) in the garden, from Oregon State University.

 

How to Pest-Proof Your Home:  University of Kentucky publication. 

 

Disease

 

Ohio State University Intro to Plant Disease Fact Sheets

 

Azalea and Rhododendron Diseases:  Clemson Univ.

 

Common Diseases in the Home Garden:  Univ. of Missouri

 

Decline of White Pine in Indiana:  Purdue University

 

Disease Management Guide for Fruit Trees:  West Virginia University

 

Diseases of Hydrangeas:  Alabama Cooperative Extension Service

 

Herbicide Injury Diagnostic Key:  Wisconsin

 

Hosta Diseases and Pests:  Iowa

 

Managing Pests in Home Fruit Plantings:  Purdue University.  Home fruit spray schedule, plus other techniques.

 

Oak Wilt:  Ohio State Univ.

 

Pine Wilt:  Kansas State Univ.

 

Rose Rosette Disease:  Virginia Tech.  This is a devastating disease of roses, which, while not as common as black spot on rose, is not unheard of in southern Indiana.  Can be quite devastating.

 

Twig, Stem and Branch Diseases of Pine:  Kentucky

 

Visual Gallery of Images of Tree Fruit Diseases in the Mid-Atlantic Region:  West Virginia University

 

 

Insects

 

General        Biological Control        Borers        Caterpillars        Galls        Japanese Beetles

 

General

 

Complete List of Entfacts:  Listing of all insect publications from the Univ. of Kentucky

 

Entomology Image Gallery:  Iowa State Univ.  Great collection of pictures of insects.

 

Home, Landscape and Nursery Insecticides:  Purdue Univ.  With the recent loss of Dursban (tm) and diazinon, many gardeners are scrambling to learn what insecticides can be substituted.  The publication is broken down by insect, with a list of labeled insecticides for each pest.

 

Host Plants and Associated Pests:  Minnesota

 

Indiana Gypsy Moth Information:  Purdue University's collection of information on a devastating caterpillar.

 

Insect and Mite Control on Woody Ornamentals and Herbaceous Perennials:  Ohio State Univ.  Designed for professionals, nurseries, etc., but lots of good information for home gardeners, too.

 

Insect and Pest Fact Sheets:  Listing of all of the insect/pest publications from Ohio State University.

 

Insects, Spiders, Mice and More:  Univ. of Nebraska

 

Predicting Insect Development Using Degree Days:  Univ. of Kentucky.  Insects are notoriously poor at reading calendars.  Here's a way to predict their emergence based on the weather.

 

 

Biological Control of Pests

 

Attracting, Importing, and Using Beneficial Insects

 

Biological Control:  A Guide to Natural Enemies in North America:  Cornell

 

Biological Control and Natural Enemies:  Univ. of California, Davis

 

Biological Control News:  Univ. of Wisconsin

 

Biological Control of Turf Insects:  Univ. of Rhode Island.

 

Common Natural Enemies:  Purdue Univ.

 

Good Guys/Bad Guys:  Univ. of Illinois.  Online photos and information from a field "flash card" guide to beneficial insects and pests.

Integrated Pest Management (IPM) for:   (All sites from University of Illinois)

        Home, Yards and Gardens

        Landscapes and Turf

        Greenhouses

 

Insect Parasitic Nematodes:  Colorado

 

 

 

 

Borers

 

Bark Beetles:  Univ. of California Davis.

 

Borers of Pines and Other Needled Evergreens:  Purdue

 

Borers that Attack Landscape Pines:  Kentucky

 

Emerald Ash Borers:  USDA Forest Service website.

 

Emerald Ash Borer Look-Alikes:  Michigan State University.  Pictures of what isn't an Emerald Ash Borer.

 

Indiana Emerald Ash Borer Information:  Purdue University's clearinghouse of information on this new pest of ash trees.

 

Insect Borers of Trees and Shrubs:  Univ. of Kentucky

 

Insects that Bore Into Wood:  Virginia

 

 

Caterpillars, Butterflies, and Moths

 

OK, there are oodles of books and websites that are devoted to identifying adult moths and caterpillars.  But very few are dedicated to the lowly caterpillar, which you kind of need to have around if you want to have butterflies and moths.  Here are a few sites I've found to be useful.

 

Butterflies and Moths of Indiana:  Use your mouse to choose a county, and learn what moths and butterflies are known to exist there.  Back up a level and choose different states to explore.

 

Caterpillars of Eastern Forests:  Sponsored by the Northern Prairie Wildlife Research Center.  Scroll down to the index to learn all about caterpillars.  Select the Families of Caterpillars link to try to find pictures of caterpillars you've found.

 

Caterpillars of North Dakota:  ...But many of these can also be found here in southern Indiana.  Click each picture to learn more about the insect; don't forget to hit the "next" button at the bottom of the page.

 

Indiana Gypsy Moth Information from Purdue

 

Spring and Fall Cankerworms (and Other Inchworms and Loopers):  Ohio.

 

Webworm Invasion of Sweden:  OK, you thought YOU had problems with caterpillars?  Not very informative, but immensely interesting pictures.  Especially the ones of the bicycles....

 

What's This (North American) Caterpillar?:  The main site is housed in the United Kingdom, but this page is for strictly North American caterpillars.  Rather than search by family names, which may mean nothing to you, you can start off by selecting the general body structure by picture, which then opens to albums of similar caterpillars.

 

 

Galls

Common Oak Galls:  University of Kentucky

 

Galls:  Virginia State Univ.

 

Gall-Making Insects:  USDA

 

Galls on Shade Trees and Shrubs:  Purdue Univ.

 

Galls on Trees:  Kansas State

 

Gouty, Horned, and Other Oak Twig Galls:  Missouri Botanic Gardens

 

Insect and Mite Galls in the Landscape:  Univ. of Minnesota

 

 

Japanese Beetles

 

Japanese Beetles in the Urban Landscape:  Purdue Univ.

 

Japanese Beetle Quarantine:  Rutgers University.  History of the introduction and subsequent spread of Japanese beetles.

 

Map of Japanese Beetles in US:  National Agricultural Pest Information System.  Map indicates location of beetles as of 2002

 

Spread of Japanese Beetles:  Map showing the extent of Japanese beetle territory over the years.

 

 

Weeds

 

Aquatic Plant Management:  Purdue Univ.  Excellent publication on identifying and controlling pond weeds.

 

Common Weed Seedlings of Michigan:  Michigan State Univ.   This publication concentrates on newly germinated weed seedlings.  Contains color photos, sketches to help key out weeds, and weed ID keys.

 

Control of Nuisance and Detrimental Fungi in Mulch and Compost:   Ohio State Univ.  Ever wondered what are those slime molds and weird mushrooms growing in your mulch bed? 

 

Herbicide Families for Corn and Soybeans:  Purdue Univ.  Lists chemicals by chemical family, with links to pictures of herbicide injury symptoms.

 

Indiana Plants Poisonous to Livestock and Pets:  Black and white pictures of plants known to be toxic to animals.

 

Invasive and Exotic Species of North America:  Lots of good pictures, with links to off-site locations for information on controlling these pests.  Includes invasive weeds, insects, diseases, and other creatures.

 

Midwestern Turfgrass Weed Identification and Control:  Univ. of Illinois.  Concentrates on lawn weeds for the Midwest.

 

New Jersey Weed Gallery:   Rutgers University. 

 

North Central Weed Science Society:  Provides links to other sites with weed identification and control information.

 

Noxious Weeds in the US and Canada:  Univ. of Montana.  Has a nice searchable database.  You can search by plant, or by location.  Click here for a list of noxious plants in Indiana.

 

Weed Control Guide for Ohio and Indiana:  Ohio State and Purdue.  Covers weed control for agronomic crops (corn, soybeans, wheat, etc.).  Purdue bulletin WS-16.

 

Weed Identification:  Univ. of Illinois

 

Weed Identification Guide:  Virginia Tech.

 

Weed Identification Resources:  Iowa State Univ. Weed Science Dept.  Contains links to good sites for identifying weeds.

 

Weed Science Society of America:  Information on identifying and controlling weeds.

 

Weeds of the North Central States:  An on-line version of a hard-to-find book originally put out by the University of Illinois Cooperative Extension Service.  Pictures are black-and-white ink drawings; information on plant size and characteristics aid in identification.

 

Wildlife

 

Center for Reptile and Amphibian Conservation and Management To promote the understanding and conservation of reptiles and amphibians of the Midwestern United States and beyond through research, education and outreach.

 

DNR Division of Fish and Wildlife:  Information and links to educational material, state parks, and Indiana Hunting Regulations.

 

Enhancing Wildlife Habitat on Farmlands:  Ohio State.  How to bring wildlife in.

 

Everything Wildlife:  Purdue.  Information on wildlife management issues, environmental solutions, seasonal topics, land management programs, and wildlife resources.

 

How to Pest-Proof Your Home:  Univ. of Kentucky.

 

Indiana Wildlife Conflicts:  Purdue Univ. and DNR.   Information on how to control wildlife that is becoming a nuisance to people and property.

 

Indiana Wildlife Federation To promote the conservation, sound management, and sustainable use of Indiana's wildlife and wildlife habitat through education and advocacy.

 

Landscape Plants Rated by Deer Resistance:  Rutgers University.  New Jersey has a surplus deer population that makes southern Indiana look like a desert.

 

Nuisance Wildlife Professionals and Rehabilitators:  Purdue.  A list of licensed wildlife control people, and licensed rehabilitation folks (to take care of injured wildlife).

 

Resistance of Ornamentals to Deer Damage:  West Virginia University.

 

Searching Wolf, The:  A site with pictures, resources, and games for wolf lovers.

 

Snakes:  Information for Missouri Homeowners:  Univ. of Missouri.  A little bit on identification, mostly information on biology and how to control snakes.

 

Snakes of the Midwest:  Good color photos of snakes commonly found in the midwest. 

 

Vanderburgh Humane SocietyLocated in Evansville, Indiana, the VHS serves as a surrender and adoption agency for unwanted pets. In addition to finding homes for animals, the VHS also works to build public awareness of the problem of homeless and abandoned pets.

 

Wildlife Damage Management:  This is the online version of the Great Plains Ag Council book by the same name.  Links to very lengthy and detailed (but easy to read) articles on different animals that can become a nuisance.

 

Wolf ParkA nonprofit education and research facility near Lafayette, Indiana.  Along with research and seminars on wolf behavior, particularly reproductive and inter-pack social behavior, Wolf Park provides interpretive programs to school groups throughout the year by prearrangement. We are also open to the general public from May through November and Saturday evening for Howl Nights. The park is home to several packs of gray wolves, plus foxes and bison.

 

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Pesticide Safety

 

Office of the Indiana State ChemistThe Indiana State Chemist is charged with administering several agricultural laws, involving seeds, fertilizer, animal feeds and pesticides.  The goal of  these laws are to ensure truth-in-labeling, food safety, user safety and protection of our environment.   Some interesting links on their site include:

Pesticide Database Search:  This page allows you to search out a list of pesticides (registered for legal use in the state of Indiana) based on such criteria as pest controlled, crop, site, active ingredient, etc.

Licensed Businesses:  Also part of the Pesticide Database, this site provides a way to look up to see if a business or individual is carrying a valid pesticide license for the state of Indiana.  You can also find a list of applicators who are licensed to control pests in a certain type of site, such as lawns or ponds.

Purdue Pesticide Programs:  Purdue Pesticide Programs (PPP), a function of the Purdue University Cooperative Extension Service (CES), has a unique, interdisciplinary purpose relative to pesticide issues. Its mission encompasses three broad areas: implementation of pesticide education outreach programs directed at pesticide user groups and the general public; coordination of pesticide research and pesticide impact assessment projects between Agricultural Experiment Station researchers and Cooperative Extension specialists; and transfer of regulatory information from EPA and the Office of the Indiana State Chemist to the regulated community and other interested parties.

Purdue Pesticide Programs publications:  A list of all the publications on pesticide safety in the Purdue system.

CDMS Labels and MSDS:  A site hosted by Crop Data Management Systems where you can download copies of pesticide labels and Material Safety Data Sheets.

EXTOXNET:  Extension Toxicology Network.  Although hosted by Oregon State University, this site is a cooperative effort of University of California-Davis, Oregon State University, Michigan State University, Cornell University, and the University of Idaho to provide a source of objective, science-based information about pesticides - written for the non-expert.  This site has been designed to answer questions that you might have about toxicants and the environment, how toxicants might affect you, and how you might become aware of possible hazards around you. 

IKE:  Improving Kids' Environment:  IKE recognizes that pests (such as cockroaches, mosquitoes, etc) are a hazard to children; the pesticides used to control these pests can also be hazardous.  IKE's goal is to reduce both pests and pesticide exposures, and to provide information to parents about planned use so they can take appropriate action.

PestFacts:  This site is sponsored by RISE:  "Responsible Industry for a Sound Environment".  This site is pro-industry, and highlights actual pest problems and how pesticides would be one of the necessary tools for dealing with a proven human health concern.

Pesticide Action Network of North America:  This site is anti-industry, and focuses solely on the harm pesticides cause.  They are more of an activist site than an educational site; some of their articles quote questionable statistics.

Pesticide Applicator Core Tutorial:  Cornell University Core Pesticide training material.  Has lots of good general pesticide safety information that the average gardener would benefit from.

Peter Sandman Risk Communication Site:  Peter Sandman is a former Rutgers University professor, who has spent his life examining the difference between perceived risk and actual hazard.  He covers pesticide issues, as well as other newsworthy hazards that have caused panic reporting in the media.

Relative Toxicity of Some Common House and Garden Pesticides:  West Virginia.

US Environmental Protection Agency:  This page provides an easy-to-browse directory of their main topics.

 

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Trees and Shrubs

General        Construction Damage        Physiology and Growth        Propagation        Soils and Planting       

Storm Damage        Tree and Shrub Selection        Symbolism and Mythology     Urban Forestry

 

General

Woody Ornamental Publications:  Purdue Univ.

Tree and Ornamental Diseases:  Purdue Univ.

Tree and Shrub Insect Publications:  Purdue Univ.

Disease Fact Sheets for Trees and Shrubs:  Cornell University

Dispelling Misperceptions of Trees:  University of Florida

DNR Tree Seedlings The DNR Division of Forestry operates two tree nurseries which produce conservation tree and shrub seedlings and windbreak conifer trees for Indiana landowners' use. Landowners may order and plant these trees for reforestation, erosion control, wildlife habitat development, watershed improvement, wetlands enhancement, windbreak, or other conservation purposes.

Indiana Big Trees, 2005:  Hosted by the Indiana Department of Natural Resources.  Check out how many state champions are in southwestern Indiana!

International Society of Arboriculture:  ... is a worldwide professional organization dedicated to fostering a greater appreciation for trees and to promoting research, technology, and the professional practice of arboriculture.  Links include various tree-related publications and how to find a Certified Arborist in your community.

Molecular Expressions:  Microscopic pictures of tree parts.

Plant Amnesty:  This Seattle-based organization exists to "end the senseless torture and mutilation of trees and shrubs."  Good articles on tree care and pruning, and some pictures of very...unique...methods of pruning.

Plant Health Care:  Hosted by Morton Arboretum in Northern Illinois.  The Morton Arboretum's Plant Health Care (PHC) reports are posted bi-weekly during April and August and weekly from May through July. Each report summarizes current tree disease and insect sightings for northeastern Illinois. The reports also include images, growing degree days and phenological indicators. Periodic feature articles offer more detailed perspectives on a range of PHC topics.

What Tree Is It?:  Tree identification, hosted by Ohio Public Libraries.

 

Construction Damage

Avoiding Tree Damage During Construction:  International Society of Arboriculture

Construction Activity on Trees:  Ohio State University

Construction Damage to Trees:  Washington State University

Environmental Stresses and Tree Health:  University of Nebraska

How to Care for Tree Wounds:  Ohio State University

Preventing Construction Damage to Trees:  University of Missouri

Protecting Trees During Construction:  Univ. of Minnesota

Rx For Wounded Trees:  Hosted by the USDA Forest Service, based on the life's work of Dr. Alex Shigo.

Sidewalks and Trees:  Iowa State Univ.

Trees and Home Construction:  Minimizing the impact of construction activity on trees:  Ohio State University

Tree Protection from Construction Damage:  Univ. of Minnesota.  Contains information on Protected Root Zones.

 

Physiology and Growth

Anatomy of a Tree Ring:  NOVA, PBS

Deep Roots of Landscape Trees:  Morton Arboretum

Garden Terms -- Plant Classification:  Nebraska

Garden Terms -- Reproductive Plant Morphology (Seeds, Flowers and Fruit):  Nebraska

Garden Terms -- Vegetative Plant Morphology (Stems, Leaves and Roots):  Nebraska

Girdling Roots:  A Problem of Shade Trees:  Ohio State Univ.

Pruning Weeping Cherries:  by Michael J. McGroarty 

Stem Girdling Roots of Trees:  Univ. of Minnesota

The Ultimate Tree Ring Page:  Univ. of Tennessee

Transplant Shock:  Based on an article from Morton Arboretum, with some added material I have found useful.

 

Propagation

Budding:  Missouri

Grafting:  Missouri

Home Propagation of Garden and Landscape Plants:  Univ. of Missouri

Home Propagation Techniques:  North Dakota

New Plants from Cuttings:  Purdue Univ.

Plant Propagation from Seed:  Virginia Tech

Propagation for Beginners:  North Carolina

Propagation of Landscape Plants:  Univ. of Florida.  Various techniques for propagating woody ornamental plants.

Seed Propagation of Woody Ornamentals:  Univ. of Florida.  Specifically looking at starting trees and shrubs from seed.

 

Soils and Planting

(Also see the section on Soils, below)

Clay Garden Soils Require Special Care:  Univ. of California, Davis

Cornell Structural Soils:  Cornell University

Farm Tile Drains and Tree Roots:  Ontario Ministry of Agriculture

Planting a Tree with a Tree Moving Machine:  South Dakota State Univ.

Planting Trees and Shrubs:  Purdue Univ.

Planting on Your Septic Drain Field:  Virginia Tech

Simple erosion control for a hillside or garden slope:  Dos and don'ts.

Staking and Guying Trees:  Ohio State Univ.

Staking and Wrapping Trees at Planting Time:  Washington State Univ.

Transplanting Established Shrubs:  Clemson Univ.

 

Storm Damage

Flooding and Its Effect on Trees:  US Forestry Service

Storm Damage to Landscape Trees: Prediction, Prevention, Treatment:  Univ. of Minnesota

Storm Damaged Trees:  Prevention and Treatment:  Georgia

Trees and Ice Storms:  Univ. of Illinois

Understanding the Effects of Flooding on Trees:  Iowa State Univ.

 

Tree and Shrub Selection

City of Chicago Trees:  Includes information on tree selection, caring for trees, and "tree etiquette".

Landscape Plants for Shady Areas:  Purdue Univ.

Landscape Plants for Areas with Full Sun:  Purdue Univ.

Landscape Plants for Acid Soils:  Purdue Univ.

Landscape Plants for Sandy Soils:  Purdue Univ.

Landscape Plants for Moist to Slightly Moist Areas:  Purdue Univ.

Landscape Plants for Wet Areas:  Purdue Univ.

Recommended Urban Trees:  Cornell University

Trees (Listed by Common Name):  North Carolina State Univ.

Trees for Hot Sites:  Virginia Tech

Tree Selector:  Univ. of Florida.  This link takes you to their selection of Northern Trees.

 

Symbolism and Mythology

 

Religious And The Curious Check Out Freaky Tree:  Video of an acacia tree that started spouting a foam-like substance from its branches after its owner died is drawing hundreds of people a day to see what some believe is supernatural ice.  Interspersed with an interview with an arborist who really identified what's going on.

Sacred Woods and the Lore of Trees

Symbolism of Plants, Herbs and Trees

The Language of Flowers

Tree Trivia and Tree Myths:  Wisconsin Natural Resources

Tree Trivia:  Tree Canada Foundation

 

Urban Forestry

 

A Technical Guide to Urban and Community Forestry:  US Forestry Service

Financial Benefits of Green Space:

Green Roof Environmental Evaluation Network:  Southern Illinois Universtiy, Edwardsville

Landscape and Human Health:  Univ. of Illinois.  The Landscape and Human Health Laboratory (LHHL) is a multidisciplinary research laboratory dedicated to studying the connection between greenery and human health.

Recycling Municipal Trees:  A Guide for Marketing Sawlogs from Street Tree Removals in Municipalities

Trees in Business Districts -- Positive Effects on Consumer Behavior:  Center for Urban Horticulture, Univ. of Washington

Trees in Business Districts -- Comparing Values of Consumers and Business:  Center for Urban Horticulture, Univ. of Washington Center for Urban Horticulture, Univ. of Washington

Trees Mean Business:  A study of the economic impacts of trees and forests in the commercial districts of New York city and New Jersey.  Click the link on the page to download the report: 145 pages, 4.12 Mb.

Urban/Suburban Design to Support Trees:  Florida.   Some extremely good links and short publications on how to incorporate trees in parking lots and sidewalk areas.

Urban Natural Resources Institute:  US Forest Service and USDA

 

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Lawn Care

Turfgrass Publications:  Purdue Univ.

UK Turfgrass Publications:  Univ. of Kentucky

Diagnosing Turfgrass Problems:  Penn State Univ.

Herbicide Delays After Seeding:  Purdue.  Handy guide to how long you need to wait to apply herbicides if you've seeded your lawn.  For Professional use only; be sure to read and follow all label directions.

Lawn Care Basics:  A nice collection of information for both home gardeners and professionals.  Topics include:

Facing the Facts: Environmental Impacts of Home Lawn Care
Basics for Homeowners: Getting Started With Lawn Care
Basics for Professional Landscaping or Large Areas
    The Basics: Soil, Grass and Weather
    Starting a New Lawn
    Maintaining Your Lawn
Informational Sources and Links
Glossary

Lime and the Home Lawn:  Ohio

Looking for Lawns:  Hosted by NASA, it features a series of articles exploring the role of turfgrass and the environment.

Natural Organic Lawn Care for Ohio:  Ohio State Univ.  OK, there's nothing "natural" about having acres of a close-cropped monoculture of grass, but if you are trying to reduce the amount of conventional pesticides used on your lawn, this is worth a read.

The Lawn Problem Solver:  Kansas State Univ.  This site appears to be under construction, but there is some good usable information already posted.

Turf Fertilizer Calculator:  Purdue University.  This is a nifty little tool that helps you determine how much fertilizer you need for your lawn.  You can type in the fertilizer analysis, the size of your lawn, and presto!  You find out how much you need to buy.

Turfgrass Identification Tool:  Purdue University.  Excellent tool for advanced turf managers to identify the species of grass in a lawn.

 

 

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Vegetable Gardening

 

Chili Head:  Everything that you could possibly ever want to know about hot peppers.

Community Supported Agriculture:  USDA.  "In basic terms, CSA consists of a community of individuals who pledge support to a farm operation so that the farmland becomes, either legally or spiritually, the community's farm, with the growers and consumers providing mutual support and sharing the risks and benefits of food production."

Extreme Pumpkins:  Pumpkin carving as an art form.  Or a vocation.

Just How Much Time Do You Have?:  Ohio State Univ.  Have you ever considered making the jump from "gardener" to "farmer"?  This site provides data on the amount of time needed per acre to plant and bring to harvest any of a number of different fruit and vegetable crops.  It also provides links to other University publications on crop production.

Permanent Raised Bed Gardening:  About as extensive a site as I've found for building a raised bed and raising garden vegetables.

Physiological, Nutritional, and Other Disorders of Tomato Fruit:  Florida

Raised Bed Gardening:  Kansas State Univ.  A down-and-dirty introduction to raised beds.

Vegetable Cultivars for Kentucky Gardens:  Univ. of Kentucky

Vegetable Insects and Their Management:  Purdue University.  Links for either commercial or home garden resources.

Vegetable Crops Publications:  Purdue Univ.

Vegetable Disease Publications:  Purdue Univ.

Vegetable Insect Publications:  Purdue Univ.

 

Organic Gardening

Indiana Certified Organic Indiana Certified Organic is an organic certification agency operating across the US and the US Virgin Islands. ICO began offering organic certification in 1995 and was one of the first to be accredited by the National Organic Program. At this time ICO is NOP, ISO 65 and CAAQ accredited.

Intensive Organic Gardening:  Ohio

Manures for Organic Crop Production:  National Sustainable Agriculture Information Service.

National Organic Program Q & A:  USDA

Natural Organic Lawn Care for Ohio:  Ohio State Univ.

New Agriculture Network:  Four universities --Michigan State University, Purdue University, the University of Illinois, and Iowa State University -- have joined resources to bring seasonal advice to field crop and vegetable growers interested in organic agriculture. New information is posted twice a month during the growing season and less frequently during winter.

Non-Chemical Disease Control:  Colorado

Nutrient Content of Fertilizer and Organic Materials:  N. Carolina State Univ.

Organic Gardening:  From the magazine of the same name.  You can download copies of articles from current issue.

Organic Vegetable Production:  Purdue Univ.

Selecting and Using Organic Fertilizers:  Utah

 

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Home Fruit and Nut Production

 

Fruit Production Publications:  Purdue Univ.

Fruit Disease Publications:  Purdue Univ.

Fruit Insect Publications:  Purdue Univ.

Apple Production in the Home Garden:  Univ. of Arkansas

Growing Blackberries and Raspberries in Kentucky:  Univ. of Kentucky

Growing Highbush Blueberries in Kentucky:  Univ. of Kentucky

Just How Much Time Do You Have?:  Ohio State Univ.  Have you ever considered making the jump from "gardener" to "farmer"?  This site provides data on the amount of time needed per acre to plant and bring to harvest any of a number of different fruit and vegetable crops.  It also provides links to other University publications on crop production.

Nut Growing in Illinois:  Univ. of Illinois

Nut Tree Growing in Kentucky

Pruning and Training Apple and Pear Trees:  Clemson Univ.

Pruning Fruit Trees:  Kansas State Univ.

Pruning Neglected Apple Trees:  Tennessee

Raspberries and Blackberries:  Kansas State Univ.

Training and Pruning Fruit Trees:  N. Carolina State Univ.

Tree Fruit Research and Education Center:  West Virginia Univ.

When to Pick Tree Fruit:  Washington

 

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Flower Gardening

Flower and Houseplant Publications:  Purdue Univ.

Landscape and Ornamental Insect Publications:  Purdue Univ.

Butterfly Gardens:  Ohio State Univ.

Dividing Perennials:  Clemson Univ.

Edible Flowers:  Univ. of Kentucky

Fertilizing, Pruning, and Winterizing Roses:  Ohio State Univ.

Flowers in Ultraviolet:  Fascinating site with extremely interesting pictures of what flowers look like under ultra-violet light, the way bees and other insects see them.

Indiana Native Plants and Wildflowers:  The mission of the Indiana Native Plant and Wildflower Society is to promote the appreciation, preservation, conservation, utilization and scientific study of the flora native to Indiana and to educate the public about the values, beauty, diversity and environmental importance of indigenous vegetation.

Prairie Wildflowers:  Purdue Univ.

Weed Management For Wildflowers:  North Carolina

Wild About Wildflowers:  Univ. of Kentucky

Wildflower Meadows:  Cutting and Mowing:  United Kingdom

 

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Soils and Nutrition

A & L Great Lakes Laboratory:  Soil testing facility

Choosing a Soil Amendment:  Colorado State Univ.

Collecting Soil Samples for Testing:  Purdue Univ.

Cornell Structural Soils:  Cornell University

Cover Crops:  Clemson University.

Cover Crops and Green Manures:  National Sustainable Agriculture Information Service

Cover Crops and Living Mulches:  North Carolina

Drainage:  Purdue.  An excellent look at improving surface and subsurface drainage for lawn areas.

Drain Lines, Drainage, French Drain Lines:  Non-university, but good tips.

Fall Garden Cover Crops:  National Gardening Association

Ground Covers for Kentucky Landscapes:  Kentucky

Ground Covers for Rough Sites:  Minnesota

Gully Erosion Control:  Ontario, Canada

Interactive Landscape Materials Calculator:  How much mulch do you need to buy to provide a 4 inch layer over your 595 square foot bed?  Use this calculator and find out!

Key to the Classical Symptoms of Various Nutrient Deficiencies:  Iowa State Univ.

Lawn, Yard and Drainage (French Drains):  Non-university, but a nice explanation on how to install drain tile in your landscape.

Managing Yard Wastes -- Clippings and Composting:  Purdue Univ.

Mulches for Home Grounds:  Colorado State Univ.

Planning and Maintenance of an Erosion Control System:  Ontario, Canada

Reducing Erosion and Runoff:  Virginia

Seeding of Erosion Control Projects:  Ontario, Canada

Soil Preparation and Planting Procedures for Ornamental Plants in the Landscape:  Univ. of Georgia

Soil Testing for Lawns:  Purdue Univ.

Topsoil Suitable for Landscape Use:  Rutgers Univ.

Use of Earthen Berms for Erosion Control:  Ontario, Canada

Use of Rock in Erosion Control Projects:  Ontario, Canada

Using Mulches in Managed Landscapes:  Iowa

Web Soil Survey:  Hosted by the USDA Natural Resource Conservation Service.  Punch in an address and download a map with your soil types listed.  Other buttons explain what these terms and soil types mean.

Winter Cover Crops for Gardens and Fields:  Kentucky

 

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Ponds

Aquatic Weed Control:  Purdue Univ.

Fish Consumption Advisory:  It's sad, but we must limit how much fish we eat from Indiana streams and rivers.

Identifying Aquatic Insects from your Pond:  Maine, SWCD

Ohio Pond Management:  Ohio State Univ.

Pond Construction -- Some Practical Considerations:  Virginia Tech

Ponds:  Planning, Design and Construction:  USDA

Southern Regional Aquaculture Center publications:  Various publications related to pond management, including repairing leaky ponds and levees, fish disease, and specifics on raising various aquatic species for commercial production.

Stream Management Guides:  Ohio Dept. of Natural Resources

Winter and Summer Fish Kills in Ponds:  Ohio State

 

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